('Power aperture product in dB'); % generate Figure 1.16b lambda = 0.03; % wavelength in meters G = 45; % antenna gain in dB ae = linspace(1,25,1000);% aperture size 1 to 25 meter squared, 1000 points Ae = 10*log10(ae); range = 250e3; % rnage of interset is 250 Km ...
选择A_e = 2.25m^2;对应的天线3dB仰角波束宽度和方位波束宽度elevation and azimuth beamwidths分别记为θ_e、θ_a。选择\theta_e = \theta_2 - \theta_1 = 13.13-2.08=11.05° \tag{1.102}方位角3db天线波束宽度由式(1.42)计算为\theta_a = \frac{4\pi}{G\theta_e} = \frac{4\pi \times 180^...
('Beamwidth',azBw); rdr.TransmitAntenna.OperatingFrequency = freq; rdr.ReceiveAntenna.OperatingFrequency = freq; rdr.Transmitter.Gain = antGain; rdr.Receiver.Gain = antGain; rdr.TransmitAntenna.Sensor = ant; rdr.ReceiveAntenna.Sensor = ant; % Add radar to radar platform rdrplat.Sensors = ...
Antenna and Scanning. Antenna height, tilt, and polarization are left unchanged. The azimuth and elevation antenna beamwidth are set to 2 and 6 degrees, respectively, to meet the azimuth and elevation accuracy requirements. The Scan Mode is set to Mechanical to facilitate 360-degree coverage in ...
My approach is as follows; 1. Build to radar models as shown by the basic monostatic demo. 2. But use custom radar antenna i.e: hant = phased.CustomAntennaElement to build a particular antenna characteristics eg azimuth beamwidth and elevation. 3. Try to implement your answer in order to...
Lei Du, Qiao Sun, Changqing Cai, Yue Zhang, and Hongbo Hu, "Antenna Beamwidths of Above-The-Road Radar for Traffic Speed Enforcement in China," International Journal of Antennas and Propagation, vol. 2012, Article ID 492326, 9 pages, 2012....
altimeterAntennaElement = phased.GaussianAntennaElement("Beamwidth",antBeamwidth,"FrequencyRange",frequencyRange);% Plot the beamwidth to verify that it matches the expected antenna beamwidthbeamwidth(altimeterAntennaElement,fCenter); The transmit and receive antennas are modeled as aphased.Radiatorandphased...
Define a sinc-function antenna pattern with a half-power beamwidth of 90 degrees. The radar transmits at 100 MHz. pat_angles = linspace(-90,90,361)'; freq = 100e6; ntn = phased.SincAntennaElement('Beamwidth',90); pat = ntn(freq,pat_angles'); ...
; % antenna elevation beamwidth in radians re = 6371000; % earth radius in meter rh = sqrt(8.0*hr*re/3.); % range to horizon in meters SLv = 10.0^(SL/10); % radar rms sidelobes in volts sigma0v = 10.0^(sigma0/10); % clutter backscatter coefficient tau = 1/b; % pulse ...
% 对天线元件进行建模antElmnt=phased.IsotropicAntennaElement('BackBaffled',true);% 构造接收阵列数组Ne=6;rxArray=phased.ULA('Element',antElmnt,'NumElements',Ne,...'ElementSpacing',lambda/2);% 接收阵列的半功率波束宽度hpbw=beamwidth(rxArray,fc,'PropagationSpeed',c) ...